Slope-intercept form is simply y=mx +b
your equation is 3x -y = 7
rearranging that to y = mx +b makes it look like this:
- y = -3x +7
y =3x -7
making m =3 and b=-7, so your answer is C
One lap is .25 miles. so 9 laps would be 2.25 miles in 2.5 minutes. miles/minute is what we are trying to find. it is exactly what it looks like the amount of miles divided bye he amount of minutes, so 2.25/2.5 ur answer is 0.9 miles/minute
Well, the first place behind the decimal place is tenths, and the second is hundredths, and the third is thousandths, so it would be three thousandths and one tenth
surface area is the area of all the faces on a shape so to speak.
2(120 x 110)=26,400
2(120 x 4)=960
2(110 x 4)=880
880+960+26,400=28,240
Surface area = 28,240